9.4: Next Generation Nano-electronics Utilizing Piezoelectricity and Piezoresistivity of 2D Materials Beyond Graphene
Abstract
The objective of this proposal is to conduct experimental measurements of the piezoelectric and piezoresistive properties of novel 2 dimensional materials to validate theoretical predictions and explore the effects of various defects on these properties. The PI proposes to establish a protocol to fabricate suitable nanostructures made of single layer suspended nano-ribbons of 2 dimensional materials such as h-BN and transition metal dichalcogenides (MoS2, MoSe2, MoTe2, WS2 etc). An electro-mechanical measurement platform employing both a scanning force microscope (SFM) and an in-situ Raman spectroscope will be established for the characterization of both piezoelectric and piezoresistive properties of 2D materials. The effect of defects such as vacancies, dislocations and impurities on the electrical properties will be explored experimentally as well as theoretically. He proposes to compare the experimental results with predictions made using density functional theories.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1510068
Entities
People
- Horacio D Espinosa
Organizations
- Army Contracting Command
- Northwestern University
- Office of the Secretary of Defense